Telecommunications Science ›› 2010, Vol. 26 ›› Issue (7): 76-79.doi: 10.3969/j.issn.1000-0801.2010.07.019
• Topics:IPv6 technology and Applications • Previous Articles Next Articles
Peng Chen1,Lufeng Liu2
Online:
Published:
Abstract:
Combined with special structure of tunnel and wireless signal transmission characteristics, and analysis of electromagnetic wave polarization,the paper present the measurements of wireless communication in tunnel,the height of tunnel is 3 m and the width of tunnel is 2 m, the testing frequency is 433 MHz, transmit power is from -30 dBm to -25 dBm, receive sensitivity is -105 dBm, the gain of linear polarization antenna is 2 dBi, the transform data is not coding. Through theoretical analysis on electromagnetic wave polarization and measurements, rectangular tunnel height is H and width is W, when H>W, the vertical polarization mode is better than horizontal polarization; when H<W, horizontal polarization mode is better than vertical polarization.
Key words: vertical polarization, horizontal polarization, reflection wave, transmission wave, tunnel
Peng Chen,Lufeng Liu. Effect of Polarization on Wireless Communication in Tunnel[J]. Telecommunications Science, 2010, 26(7): 76-79.
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URL: https://www.infocomm-journal.com/dxkx/EN/10.3969/j.issn.1000-0801.2010.07.019
https://www.infocomm-journal.com/dxkx/EN/Y2010/V26/I7/76
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